Instrument-table for opticians, &amp;c.



Pdtentad Oct. 30, I900.

m E B s P INSTRUMENT TABLE FOR OPTIGIANS, 6w.

{Application filed m. 7, 1900.)

(No Model.)

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UNITED STATES PATENT OFFICE.

PHILIP S. REID, OF ROSEDALE, NEW JERSEY.

INSTRUMENT-TABLE FOR OPTICIANS, 80C.

SPECIFICATION forming part of Letters Patent No. 660,868, dated October30, 1900. Application filed February '7, 1900. Serial No. 4,325. (Nomodel.)

To all whom it may concern.-

Be it known that I,PHILIP S. REID, a citizen of the United States,residing at Rosedale, in the county of Camden, State of New Jersey, haveinvented a new and useful Improvement in Instrument-Tables forOpticians, Micro-' scopists, and Others, which improvement is fully setforth in the following specification and accompanying drawings.

Myinvention consists of an instrument-table for Opticians,microscopists, and others embodying a top and means for counterbalancingand operating the same, whereby it may be adjusted in height with thegreatest ease and correctness.

Figure 1 represents a perspective View of a table embodying myinvention. Figs. 2 and 3 represent horizontal sections, respectively, onlines was and y y, Fig. 1. Fig. 4 represents a top or plan view of oneof the counterpoises employed.

Similar letters of reference indicate corresponding parts in thefigures.

Referring to the drawings, A designates the top of the table, and Bdesignatesa stem depending therefrom.

G designates a standard, which is supported on the base or feet D as aframe and has at its upper end the laterally-projecting arms E, on whichare the bosses or guides F, in which said stem is freely fitted, so asto be capable of raising and lowering said top A,

said bosses being provided with the screw G,

which is adapted to tighten against the stem B for holding the top inits adjusted position.

Mounted on the bearings H on the standard C is the sprocket wheel orpulley J, whose shaft has connected with it the hand-wheel or handle K,whereby said wheel J may be rotated.

L designates a sprocket chain, belt, strap, &c., which is passed aroundsaid wheel or pul ley J and has one end attached to the lower end of thestem B, the other end carrying the weight M,it being noticed that thearms E have therein the openings N, in which said chain L is movable. V

Connected with the standard 0 is the vertical rod P, to which is freelyfitted the eye Q, the latter being attached to the weight M,

by which provision said weight is guided in its motions and preventedfrom swaying or swinging.

The operation is as follows: The table-top is counterbalanced withnicety by means of the Weight M and the additional couuterpoises Rthereon, and the wheel K is then turned convenient-ly it may be by onehand-so that by the action of the chainL thereon and the stem B,connected with the latter,the top may be set at the desired height, itbeing seen that this is accomplished with ease, as direct lifting orlowering of the top by hand is avoided. Then this screw G is rotatedreadily -it may be by the other hand-whereby it engages with said stem Band the top is held immovable in its adjusted position. In order toretain the connterpoises R on the weight M, the latter has the neck Trising therefrom and made of angular form in cross-section, the upperportion of said neck beingreduced in thickness, as at T. Each of theeounterpoises R has a slot U thereon, the same being respectively narrowand wide, whegeby the counterpoise may be fitted through the narrowportion of the slot U over the rearward portion T of the neck, and thecounterpoise is then lowered through the wide portion of said slot overthe main portion of said neck, whereby the counterpoise is interlockedwith the neck and prevented from lateral displace- 'rnent. When thecounterpoise is properly raised, it may be displaced from the reducedportion of the neck through the narrow portion of the slot U.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A table-top With a depending stem, a standard with a recessed arm, abearing and a boss on said arm, said stem being vertically movable insaid boss, a wheel mounted on said bearing, a belt connected at one endwith said stern and passing around said wheel, and a counterbalance onthe other end of said belt, the recess of said arm having said beltpassed freely through the same.

2. A table-top with a depending stem, a standard with recessed arms, aboss on one arm, and a bearing and a bosson the other arm, said stembeing Vertically movable in said bosses, a wheel mounted on saidbearing, a belt connected at one end with said stem and passing aroundsaid wheel, a counterbalance on the other end of said belt, and atightening-screw on one 01; said bosses, said belt being guided in therecesses of said arms.

3. In a table, a movable top, a stem carrying the same, a frame witharms, and bosses supported on said arms, in which bosses said stem isfreely supported, a Wheel on said frame, a belt connected with said stemand passing around said wheel, a counterbalance 0n the end of said beltopposite to said stem, a handle on said wheel, and a set-screw on one ofsaid bosses adapted to tighten against said stem, the head of said screwand the said handle being adjacent, and said belt being guided inrecesses in said supporting-arms.

4. In a counierbalanced table-top, an operating-strap for said top, aWeight on said strap provided with an angular neck, a portion of whichis of reduced thickness, and a counter-poise on said weight, saidcounterpoise having a slot composed of wide and narrow part-s forengagemeni with correspending, parts of said neck.

PHILIP S. REID.

VViLnesses:

JOHN A. WIEDERSHEIM, WM. OANER WIEDERSHEIM.

